Crane operation
10.5 Crane operation with main boom
10 - 118 3 302 633 en Operating Instructions GMK5250L
27.09.2017
Braking the
slewing
movement
You may only brake the slewing movement with the slewing gear brake.
With the control lever
• Move control lever (2) towards its initial position – the slewing movement
will be braked.
At the initial position, the slewing movement will be stopped. At the same
time the slewing gear brake will be applied, and lamp (1) will light up.
Releasing the
slewing gear
brake
The slewing gear brake will be released as soon as you deflect the control
lever (2).
Lamp (1) will extinguish if the slewing gear brake has been released.
Applying the
slewing gear
brake
The slewing gear brake is engaged when you switch off the slewing gear;
à p. 10 - 119.
The slewing gear brake will also engage if control lever (2) is in its initial
position.
The lamp (1) will light up if the slewing gear brake has been applied.
S
Risk of the main boom buckling!
On no account switch the slewing gear off to brake it; only switch the
slewing gear off when the superstructure has stopped rotating.
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